Egg tester



June 17 1924.,

1,498,006 A. A. WOLF EGG TESTER Filed Oct. 5. 1921 I 33W; W 91%,

Patented .lune- 17, 1924.

UNITEDl STATES PATENT OFFICE.-

ARTHUR, A. VVOLF, OE PHOENIX, ARIZONA.

` nGG TESTER.

Application filed October 5, 1921. Serial N10. 505,536.

State of Arizona, have invented certain new i and useful Improvements in Egg Testers, of

which the following is a full, clear7 and eXact tioned 'against the partition 13 and in front description.

My invention relates to an egg tester and has for its object to provide such a device which is simple in construction, made of few parts and can be easily carried from place to place.

Another object of the invention is the provision of a portable dark room which forms a part of the tester and permits of the use of the tester out in the open during theday.

Other objects and advantages of the inven-v tion will be apparent from the following description when taken in connection with the accompanying drawing, in which,

The figure is a Vertical section through the apparatus.

Referring to the drawing more in detail, the numeral 1 designates generally the egg tester which comprises a casing4 2, electric bulb 8 and refiector 41.

Arranged at the proper distance from the source of light 3 is a lens 6 for focusing the light on the eggs to be tested. It is necessary, of course, that the eggs be shielded from outside light rays, and to this end the open end of the casing 2 is threaded .to receive the threaded end of a cylindricalreceptacle or dark room 'let in which is fixed a parttion 13; the partition being apertured as indicated at 18 to serve as a guide for properly positioning the eggs before the light 3.

Extending upwardly fromthe receptacle lli is an observation shaft 15 in which is mounted a lens 16 for focusing the light rays, and a fiexible curtain or screen 17 is secured to the remote end of the receptacle 14 for the purpose of excluding to a considerable extent4 the eXterior light while an egg is undergoing examination.

vIn operation the egg to be tested is posiof the openinglS, the curtain 17 being raised slightly for this purpose. Throughzthe medium of the lens 6 the rays from the source of light 3 will be concentrated on 'the Vegg while the lens 16 forms an image which may be viewed by the observerv who applies his eye to the upper end of the observation shaft 15.

From the foregoing Vdescription taken in connection With the accompanying drawing, it will be apparent that I have devised a relatively simple construction for candling eggs, which is composed of few parts an which may be easily assembled and disassembled for Cleaning, repairs and the like.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is A device of the class described comprising a cylindrical casing, a light reflector mounted in said casing, anielectric lamp socket extending` through the refiector and the end of the ca'sing, an open-ended cylindrical receptacle i threaded to Vsaid'casing, a lens in said casing, an apertured rigid partition inV said receptacle intermediate the ends thereof ad adjacent the lens, a *vertically eXtending shaft attached to said receptacle,` a lens in said shaft, and a fiexible curtain closing the end of the receptacle remote from the refiector. p

ARTHUR A. WOLF. 

